Base | Representation |
---|---|
bin | 1100110111010100111… |
… | …0101100111000001001 |
3 | 210010110120112101011110 |
4 | 3031311032230320021 |
5 | 12110112042321301 |
6 | 245310341520533 |
7 | 21652560011523 |
oct | 3156516547011 |
9 | 703416471143 |
10 | 221010120201 |
11 | 858034a6502 |
12 | 369bba13149 |
13 | 17ac2068470 |
14 | a9a85caa13 |
15 | 5b37c200d6 |
hex | 33753ace09 |
221010120201 has 16 divisors (see below), whose sum is σ = 324099949824. Its totient is φ = 133112477184.
The previous prime is 221010120169. The next prime is 221010120259. The reversal of 221010120201 is 102021010122.
It is not a de Polignac number, because 221010120201 - 25 = 221010120169 is a prime.
It is not an unprimeable number, because it can be changed into a prime (221010120271) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60284616 + ... + 60288281.
It is an arithmetic number, because the mean of its divisors is an integer number (20256246864).
Almost surely, 2221010120201 is an apocalyptic number.
It is an amenable number.
221010120201 is a deficient number, since it is larger than the sum of its proper divisors (103089829623).
221010120201 is a wasteful number, since it uses less digits than its factorization.
221010120201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 120572960.
The product of its (nonzero) digits is 16, while the sum is 12.
Adding to 221010120201 its reverse (102021010122), we get a palindrome (323031130323).
The spelling of 221010120201 in words is "two hundred twenty-one billion, ten million, one hundred twenty thousand, two hundred one".
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